The pin code is the payment password of CCB u-shield. The final step of each transaction is to enter the pin code and confirm.

The password card has a number of character strings printed in a matrix form. When the user uses e-banking to perform payment transactions such as external transfers, B2C shopping, and payment, the electronic banking system will randomly give a set of password card coordinates.

The customer finds the password combination from the card based on the coordinates and enters it into the electronic banking system. Only customers who enter the correct password combination can complete the relevant transaction. The password combination is valid once and becomes invalid after the transaction is completed.

Extended information:

PUK code:

It consists of 8 digits, which cannot be changed by the user. When the phone's PIN code is locked and you are prompted to enter the PUK code, do not act rashly, because you only have 10 opportunities to enter the PUK code. If you enter the PUK code incorrectly 10 times, the phone card will be permanently locked. The PUK code of some mobile phone cards is provided with the card when the user purchases the card, while others need to be obtained from the network operator. If the PIN code is locked and you do not know the PUK code, do not enter it casually. The correct approach at this time is to call the service hotline of the operator to which the mobile phone card belongs, or bring the owner's valid ID to the local operator's business hall to check the PUK. code to unlock. This service is free.

PIN2 code:

It is used when setting up mobile phone billing. If "PIN2 code restricted calls" is displayed on your mobile phone, it may be because you have turned on the PIN2 code-related functions, but because the network does not currently support the PIN2 code-related functions, you cannot use the functions even if you enable them. If the PIN2 code is accidentally locked, it will not affect the normal use of the phone. Please bring the valid ID of the phone owner to the business hall of the home operator to apply for free unlocking service.

Reference material: PIN code—Baidu Encyclopedia